Final answer:
To solve for the time it takes for a turntable to reach its final rotational speed, we can use the equation Δω = αΔt, where Δω is the change in angular velocity, α is the angular acceleration, and Δt is the time taken.
Step-by-step explanation:
The given question is asking for the time it takes for a turntable to reach its final rotational speed. To solve for this, we need to use the equation that relates rotational quantities:
Δω = αΔt
Where:
- Δω is the change in angular velocity (from initial to final)
- α is the angular acceleration
- Δt is the time taken
In this case, since the final angular velocity is not given, we can assume it to be zero, as the turntable comes to a stop. The question does not provide any other specific values, so we cannot directly solve for the numerical value of the time taken.